Bombings of King's Cross and Euston stations
The King's Cross station and Euston station bombings were two bombing attacks on 10 September 1973 by the Provisional Irish Republican Army (IRA) that targeted two mainline railway stations in central London. The blasts wounded 13 civilians, some of whom were seriously injured, and also caused large-scale but superficial damage.
Source: Wikipedia — Bombings of King's Cross and Euston stations (CC BY-SA 4.0)